Angelina Jolie double mastectomy

Amel Emric / Associated Press

Angelina Jolie had a preventive double mastectomy because she has a genetic mutation that increases her risk of breast cancer. A new study finds that women with such mutations who get cancer in one breast live longer if they have both breasts removed.

Angelina Jolie had a preventive double mastectomy because she has a genetic mutation that increases her risk of breast cancer. A new study finds that women with such mutations who get cancer in one breast live longer if they have both breasts removed. (Amel Emric / Associated Press)

Angelina Jolie had a preventive double mastectomy because she has a genetic mutation that increases her risk of breast cancer. A new study finds that women with such mutations who get cancer in one breast live longer if they have both breasts removed.